On-demand Hot Water
On-demand Hot Water | Tankless Water Heater Install | Plumbing | Rockford
Imagine stepping into a shower that never runs cold, even after the whole family has taken their turn—that’s everyday life when HEP’s certified plumbers bring on-demand technology to your Rockford home. Our team removes bulky, outdated tanks and replaces them with sleek, wall-mounted systems that heat water only when you need it, slashing energy bills and freeing up closet space. With decades of experience and the best warranties in the region, we size, vent, and fine-tune each unit so you enjoy a steady, efficient flow of hot water in every season.
Ready to make cold-shower roulette a thing of the past? Schedule your tankless water heater install with HEP today and feel the difference from the first turn of the tap. We’re local, we’re quick, and we’re on call 24/7 to keep Rockford homes comfortably—and endlessly—supplied with hot water.
FAQs
How is a tankless water heater different from a traditional tank system?
A tankless (on-demand) water heater heats water only when you open a hot-water tap, eliminating the need for a storage tank. This means virtually unlimited hot water, no standby heat loss, and a unit that is small enough to mount on a wall. Traditional storage heaters constantly re-heat 40–80 gallons of water, consume more energy, and take up much more floor space.
Will a tankless water heater be powerful enough for my whole Rockford home?
Yes—as long as the unit is properly sized. We calculate your home’s peak hot-water demand (showers, washing machine, dishwasher, etc.) and select a model with the correct flow rate (gallons per minute) and temperature rise. Larger homes may need two units working in parallel or a dedicated unit for high-demand fixtures. During your free estimate we’ll measure your exact needs so you never run out of hot water.
What is the typical cost to install a tankless water heater in Rockford?
Installed prices in the Rockford area usually range from $3,000 to $4,800 for a whole-home gas unit, including labor, venting, gas line upsizing, and permits. Electric units can run $2,000–$3,500 but may require an electrical panel upgrade. Final cost depends on fuel type, capacity, venting route, and any code upgrades needed. We provide up-front, fixed-price quotes so there are no surprises.
How long does a tankless water heater last and what maintenance is required?
Most quality tankless heaters last 20+ years—about twice the lifespan of a tank system. Annual maintenance is simple: flush the heat exchanger with a descaling solution to remove mineral buildup and clean the air intake filter. Our maintenance plan covers this service each year and keeps your manufacturer’s warranty valid.
Can I install a tankless heater where my old tank was located?
Often yes, but some adjustments are usually necessary. Tankless units need: (1) a vertical wall surface for mounting, (2) a larger gas line (¾" in many cases) or adequate electrical capacity for electric models, and (3) approved venting through the roof or an exterior wall. During our site visit we verify vent routes, gas supply, and combustion air to ensure your existing location will work or recommend a better spot.
Do tankless water heaters qualify for rebates or tax incentives in Illinois?
Absolutely. Most ENERGY STAR® gas tankless models with a ≥0.95 UEF currently qualify for a $100 ComEd instant rebate and a federal 30% tax credit (up to $600) under the Inflation Reduction Act. Additional Nicor Gas rebates of $350 may apply if you upgrade from a standard tank. We handle all paperwork so you receive every available incentive.